Tables—continued parts

Part I appears in this volume, pp. 203 -278. All numbers for sections, references, and tables in Part II continue the sequence established in Part I. 

In a continuation of our work Phillipou soviet to optimize the stem using furfuryl alcohol and formaldehyde as crosslinking agents. In Table IX Part C, results obtained using mixtures of furfuryl alcohol and formaldehyde are given. 

Let us pass to the table relating to the opening of 3mm. Here, as one sees, the ratio between the length of the continuous part and the square root of the load is, very nearly, the same for all the loads it follows that with this opening, the stream already starts to be under the effective conditions of the first law of Savart under a load of 4.5 centimetres. But, according to what precedes, with the opening of 6mm, the stream enters under these same conditions only under a load of at least 47 centimetres thus the load from which the first law of Savart starts to be carried out, increases and decreases with the diameter of the opening, and much more quickly than this diameter however, it is in that that the third conclusion of 438 consists. 

Let us calculate now, for each of the four loads, the ratio between the lengths of the continuous parts respectively corresponding to the two openings we will form the following table thus ... 

Accordingly, the series in question can thus be also used for the discussion of the laws which govern the length of the continuous part. 1 will restrict myself to reproduce here two of these same series these are those that Savart took as typical, and from which he deduced his laws here are the tables he reports ... 

A variety of measures must be taken to assure safe and continued operation. Because the natural water table is higher than the coal seams, or the seams are natural aquifers, it is necessary to pump water out of the pit or to drill weUs around the mine and pump to reduce the water table. The Rheinische Braunkohlenwerke (Rheinbraun) pumps water at a rate of 1-1.2 x 10 m /yr. Part of this water is processed to provide drinking water for Neuss and Dusseldorf. The tendency of lignite to ignite spontaneously requires care in the amount of face that is exposed, especially in naturally dry, hot, windy climates. 

---